I heard from a few other Vios users that these are the usual problems (& remedies) for the car.

Pls help add any other common problems that you know of.
Pls help keep this thread clean.

1) Evaporator (near air filter)
- Problem : Engine light comes on because the wire connection to the evap sensor unit is bad or broken. This is because this part of the engine always vibrate, and thus affects the connection after time.

I heard from a few other Vios users that these are the usual problems (& remedies) for the car.

Pls help add any other common problems that you know of.
Pls help keep this thread clean.

1) Evaporator (near air filter)
- Problem : Engine light comes on because the wire connection to the evap sensor unit is bad or broken. This is because this part of the engine always vibrate, and thus affects the connection after time.

A friend of mine had this problem. When key is turned, it cranked but not enough to start the engine. Problem solved after changing the battery. That was the first time he changed his battery since buying the car about 2-3 years ago, i think.

A friend of mine had this problem. When key is turned, it cranked but not enough to start the engine. Problem solved after changing the battery. That was the first time he changed his battery since buying the car about 2-3 years ago, i think.

it is confirm not battery problem!
i am not sure whether it is related to fuel filter or immobilizer? or even others

1. earlier statements said that your battery is ok (may i know how do u know your battery is ok?) do u have volt gauge inside..
i had sent my car to toyota service center, the result in report show battery is ok, and i hv test tester as well show my batt is normal.

2. how frequent did u wash your engine? or do u normally drive thru flooded area? electronic parts may get affected.
i didn't wash engine before, don't think is water and never flooded my car before.

3. starter that is full of carbon would disrupt the starter to crank engine. hence the need of servicing the starter is a must.

May i know how much is the starter service cost?
but i don't really think is starter problem , suspect is fuel filter, immobilizer, or something fuel pressure problem.